RU2650054C2 - Measuring system for monitoring thermal process parameters of external wall in prolonged testing modes in full-scale conditions - Google Patents

Abstract

FIELD: test equipment.

SUBSTANCE: invention relates to thermal tests and can be used for testing enclosing structures. Disclosed is a system for monitoring thermal process parameters of the outer wall in prolonged test modes in full-scale conditions, which includes temperature sensors (DTP) and humidity sensors (DTG), installed simultaneously in several rooms in the outer walls at equal distances from each other from the outside and inside, and also inside the walls, connected by a communication cable to a control centre, through which the duration, frequency and other parameters of data collection are programmed, configured to view real time measurement results, and after completing data processing, from which all information is read simultaneously with subsequent processing in a PC.

EFFECT: technical result is higher accuracy of obtained data.

1 cl, 1 dwg

Description

The invention relates to thermal testing.

Known devices for determining the thermal characteristics of the wall fencing with long test conditions in the field, described in patents for utility models:

1) No. 94709 "Device for determining the thermal properties of the building envelopes of buildings and structures by thermal diffusivity in natural conditions";

2) No. 124395 "Device for determining the thermal properties of the building envelopes of buildings and structures by thermal diffusivity in natural conditions";

3) No. 153276 “Laboratory complex for determining the thermotechnical characteristics of wall fencing samples under long-term test conditions for a year or more in natural conditions”.

The disadvantage of the proposed solutions is that they do not fully measure the necessary parameters for processing experimental data. For example, when checking for the possibility of moisture condensation in the thickness of the studied fence, it is necessary to know not only the air temperature by the wall thickness, but also the humidity, as well as the humidity of the internal and external air (ϕ _in , ϕ _n ).

The measurement of thermal characteristics along the surface of a wall in one place cannot always objectively reflect the processes of heat and mass transfer that occur along the entire surface of the exterior wall of a building. In order to obtain more accurate information about the heat and mass transfer process in the outer wall of the building, it is necessary to obtain data from sensors located in several places remote from each other. The implementation of this task is set in the proposed technical solution.

The closest technical solution is the method for determining the thermal characteristics described in the patent for utility model No. 135420 "Laboratory installation for determining the thermal characteristics of samples of wall fencing during long-term testing under natural conditions (ed. P. Mureev et al., Publ. 10.12 .2013).

The technical result - the study of thermophysical processes occurring in the thickness of the wall fencing, with changes in temperature and humidity outside and inside the room.

The technical result is achieved by the fact that the measuring complex for monitoring the thermal parameters of the external wall under long-term test conditions in natural conditions according to the invention includes temperature sensors (DTP) and humidity sensors (DTG) installed simultaneously in several rooms in the outer walls at equal distances from each other the outer and inner sides, as well as inside the wall, connected by a communication cable to the control center, by means of which the duration, frequency and other pairs are programmed meters of data collection, with the ability to view the measurement results in real time, as well as after completion of data processing, from which all information is read simultaneously with subsequent processing in a PC.

The measuring complex is illustrated in the drawing.

1. Thermograph (TsU)

2. Module M01

3. The M08 (8/16) module is universal

4. Heat flow sensor PTP-1B

5. Sensor t ° surface DTP-A1

6. Sensor t ° environment DTP-1,3

7. Humidity and temperature sensor DTG-2

8. Communication cable (M01-M08)

9. Communication cable (TsU-module)

In the measuring complex for monitoring the thermal parameters of the external wall under long-term test conditions in situ for studying the thermophysical processes occurring in the thickness of the wall fence, temperature sensors (ДТП) and humidity (ДТ) Г are installed at equal distances in several rooms at equal distances indoors and outdoors - temperature and humidity sensors (DTG): process parameters (duration, frequency, start time) are programmed using the control center (CC). After starting the measurement, the control center interrogates the sensors through the appropriate modules and puts the measurement results in its memory. Viewing the results is possible both at the end of the process, and in real time, directly during the measurement.

Claims (1)

A measuring complex for monitoring the thermal parameters of the external wall under long-term test conditions in natural conditions, characterized in that it includes temperature sensors and humidity sensors installed simultaneously in several rooms in the external walls at equal distances from each other from the outside and inside, as well as inside the wall connected by a communication cable to the control center, with the help of which the duration, frequency and other parameters of data collection are programmed, with the ability to view the results during real time measurements, as well as after completion of data processing, from which all information is read out simultaneously with subsequent processing in a PC.

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